16 Printed matter, namely, reports, books, and journals in the field of education; Art materials, namely, ink for pens, pens and ink pens; office requisites, namely, envelope sealing machines, staplers, and rubber bands; printed educational materials in the field of children's education; photographs; books, namely, baby books, coloring books, travel books, and school writing books; printed periodicals in the field of music, movies, and education; study books, namely, study guides and printed papers in the field of high school test preparation; printed teaching materials in the field of children's education; clay, namely, modeling clay for use as instructional materials; children's books; children's books with diopter components